package day01;

import java.io.PrintWriter;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        cerr.println("Enter an integer x:");
        int a=cin.nextInt();
        cout.println(a*a);


        cin.close();
        cout.close();
    }

    static Scanner cin=new Scanner(System.in);//Alt+Enter
    static PrintWriter cout=new PrintWriter(System.out);
    static PrintWriter cerr=new PrintWriter(System.err,true);

}
